Identifying Intel Pentium III microprocessors:
The following Pentium III identification "chart" is adapted from Intel's chart at http://support.intel.com/support/processors/sspec/p3p.htm, which is kept up to date by Intel. Intel's web page for more detailed references to information on the P3 line of CPU's is at http://support.intel.com/support/processors/pentiumiii/.
Intel Pentium III microprocessors may be identified by their S-specification (S-spec), which is the five-character code beginning with ?S? or ?SL? printed on the processor itself, on the top of the SECC2 cartridge and on the outside of the retail box. To determine the specifications for a CPU, simply check its S-spec against those in the chart.
SPEED TYPE...... FSB.... FORM.. STEPPING RETAIL OEM
450.. KATMAI---- 100 MHz SECC2. kB0 SL3CC SL364
450.. KATMAI---- 100 MHz SECC2. kC0 SL37C SL35D
500.. KATMAI---- 100 MHz SECC2. kB0 SL3CD SL365
500.. KATMAI---- 100 MHz SECC2. kB0 SL365 SL365
500.. KATMAI---- 100 MHz SECC2. kC0 SL37D SL35E
500E. COPPERMINE 100 MHz FC-PGA cA2 SL3R2 SL3Q9
500E. COPPERMINE 100 MHz FC-PGA cB0 SL45R SL444
533B. KATMAI---- 133 MHz SECC2. kC0 SL3E9 SL3BN
533EB COPPERMINE 133 MHz SECC2. cA2 SL3SX SL3N6
533EB COPPERMINE 133 MHz FC-PGA cA2 SL3VA SL3VF
533EB COPPERMINE 133 MHz SECC2. cB0 SL44W SL3XG
533EB COPPERMINE 133 MHz FC-PGA cB0 SL45S SL3XS
550.. KATMAI---- 100 MHz SECC2. kC0 SL3FJ SL3F7
550E. COPPERMINE 100 MHz FC-PGA cA2 SL3R3 SL3QA
550E. COPPERMINE 100 MHz SECC2. cA2 SL3V5 SL3N7
550E. COPPERMINE 100 MHz SECC2. cB0 SL44X SL3XH
550E. COPPERMINE 100 MHz FC-PGA cB0 SL45T N/A
600.. KATMAI---- 100 MHz SECC2. kC0 SL3JT SL3JM
600E. COPPERMINE 100 MHz SECC2. cA2 SL3NA SL3H6
600E. COPPERMINE 100 MHz FC-PGA cA2 SL3NL SL3VH
600E. COPPERMINE 100 MHz SECC2. cB0 SL44Y SL43E
600E. COPPERMINE 100 MHz FC-PGA cB0 SL45U SL3XU
600B. KATMAI---- 133 MHz SECC2. kC0 SL3JU SL3JP
600EB COPPERMINE 133 MHz SECC2. cA2 SL3NB SL3H7
600EB COPPERMINE 133 MHz FC-PGA cA2 SL3VB SL3VG
600EB COPPERMINE 133 MHz SECC2. cB0 SL44Z SL3XJ
600EB COPPERMINE 133 MHz FC-PGA cB0 SL45V SL3XT
650.. COPPERMINE 100 MHz SECC2. cA2 SL3NR SL3KV
650.. COPPERMINE 100 MHz FC-PGA cA2 SL3NM SL3VJ
650.. COPPERMINE 100 MHz SECC2. cB0 SL452 SL3XK
650.. COPPERMINE 100 MHz FC-PGA cB0 SL45W SL3XV
667.. COPPERMINE 133 MHz SECC2. cA2 SL3ND SL3KW
667.. COPPERMINE 133 MHz FC-PGA cA2 SL3T2 SL3VK
667.. COPPERMINE 133 MHz SECC2. cB0 SL453 SL3XL
667.. COPPERMINE 133 MHz FC-PGA cB0 SL45X SL3XW
700.. COPPERMINE 100 MHz SECC2. cA2 SL3SY SL3S9
700.. COPPERMINE 100 MHz FC-PGA cA2 SL3T3 SL3VL
700.. COPPERMINE 100 MHz SECC2. cB0 SL454 SL453
700.. COPPERMINE 100 MHz FC-PGA cB0 SL45Y SL3XX
733.. COPPERMINE 133 MHz SECC2. cA2 SL3SZ SL3SB
733.. COPPERMINE 133 MHz FC-PGA cA2 SL3T4 SL3VM
733.. COPPERMINE 133 MHz SECC2. cB0 SL455 SL3XN
733.. COPPERMINE 133 MHz FC-PGA cB0 SL45Z SL3XY
750.. COPPERMINE 100 MHz SECC2. cA2 SL3V6 SL3WC
750.. COPPERMINE 100 MHz FC-PGA cA2 SL3VC SL3VN
750.. COPPERMINE 100 MHz SECC2. cB0 SL456 SL3XP
750.. COPPERMINE 100 MHz FC-PGA cB0 SL462 SL3XZ
800.. COPPERMINE 100 MHz SECC2. cB0 SL457 SL3XR
800.. COPPERMINE 100 MHz FC-PGA cB0 SL463 SL3Y3
800EB COPPERMINE 133 MHz SECC2. cB0 SL458 SL3XQ
800EB COPPERMINE 133 MHz FC-PGA cB0 SL464 SL3Y2
850.. COPPERMINE 100 MHz SECC2. cB0 SL47M SL43F
850.. COPPERMINE 100 MHz FC-PGA cB0 SL49G SL43H
866.. COPPERMINE 133 MHz SECC2. cB0 SL47N SL43G
866.. COPPERMINE 133 MHz FC-PGA cB0 SL49H SL43J
933.. COPPERMINE 133 MHz SECC2. cB0 SL47Q SL448
933.. COPPERMINE 133 MHz FC-PGA cB0 SL49J SL44J
1000. COPPERMINE 133 MHz SECC2. cB0 N. A. SL48S
1133. COPPERMINE 133 MHz SECC2. cC0 N. A. SL4HH
Key to ?chart?:
A. Intel?s Pentium III identification and basic specification chart, which is kept up to date by Intel, may be found at: http://support.intel.com/support/processors/sspec/p3p.htm. Intel's web page for more detailed references to information on the P3 line of CPU's is at http://support.intel.com/support/processors/pentiumiii/.
B. Intel Pentium III microprocessors may be identified by their S-specification (S-spec), which is the five-character code beginning with ?S? or ?SL? printed on the processor itself, on the top of the SECC2 cartridge and on the outside of the retail box. To determine the specifications for a CPU, simply check its S-spec against those in the chart.
C. P3?s come in two different varieties, from a performance point of view: the earlier Katmai design, which is less desirable; and the later preferred Coppermine design. The Katmais were built using a .25-micron manufacturing process and their L2 cache is not physically integrated with the chip core. The Coppermines are built using an improved .18-micron manufacturing process, and have an improved memory cache architecture. The cache is physically integrated with the chip core also. The Coppermine?s performance is significantly improved by the .18-micron process and the improved memory cache design and its on-die location.
D. The identification of P3?s is made easier, according to the manufacurer, by the addition of letters to their speed designations:
1. E means the CPU is a Coppermine, which is much preferred over the older Katmai designs (which are still available but only @ 450, 500,550 or 600 MHz). All P3?s over 600 MHz are Coppermines. Not all Coppermines have an E ? usually it is used when the CPU could be confused with a Katmai of the same speed.
2. B means the CPU is designed for a 133 MHz system bus (front side bus or FSB).
3. EB means the CPU is a Coppermine designed for a 133 MHz system bus (front side bus or FSB).
4. Neither E, B or EB means that, only if the speed is 600 MHz or less, the CPU is the older Katmai design, not the newer preferred Coppermine design. All P3?s over 600 MHz are Coppermines.
E. P3?s come in two physical formats: the FC-PGA (Flip Chip Pin Grid Array) and SECC2 (Single Edge Contact Connector 2):
1. The FC-PGA form of the P3 consists of a bare microprocessor with pins on the bottom that fits into a Socket 370 type connecter on the motherboard. It also can be used in motherboards having Slot 1 type connectors when used with a ?slocket? adapter designed for FC-PGA type chips (not for PPGA type chip). Only P3 Coppermine chips come in this format, although they also come in the SECC2 form. No Katmais come in the FC-PGA form.
2. The SECC2 form of the P3 contains the microprocessor in a large black plastic cartridge that fits into a Slot 1 connecter on the motherboard. Both P3 Coppermines and Katmais come in this format. Coppermines also come in the FC-PGA form. Katmai?s come only in this format. It is expected that the SECC2 form will eventually phased out.
3. The FC-PGA form is the more versatile format because it can be used in Socket 370 motherboards directly or can be used in motherboards having Slot 1 type connectors when used with a ?slocket? adapter designed for FC-PGA type chips (not for PPGA type chip).
4. With regard to 'slocket' adapters for FC-PGA CPU's please note Intel's cautions at: http://support.intel.com/support/processors/pentiumiii/ssalist.htm
F. The P3?s come in several different steppings. The stepping identifies a particular manufacturing run, batch or version. The stepping of a CPU is only significant if one is overclocking or using multiple processors. At the time of preparing this material the Coppermine CPU?s with the cB0 or the cC0 stepping are preferred for overclocking. All P3?s @ 800 MHz or greater are of the cB0 or cC0 stepping. In multiple processor systems the CPU?s normally should be of the same stepping and S-specification.
G. P3?s are available for sale in two versions: retail or OEM:
1. Retail versions of the P3 come in Intel packaging, have an attached fan and heat sink meeting Intel?s specs, and have a full Intel warranty.
2. OEM versions when sold at retail usually are packaged by the vendor or supplier, may not include a fan (or include one supplied by the vendor), may have a shorter warranty (from the vendor only) and may or may not be as over-clockable as a retail version.
The following Pentium III identification "chart" is adapted from Intel's chart at http://support.intel.com/support/processors/sspec/p3p.htm, which is kept up to date by Intel. Intel's web page for more detailed references to information on the P3 line of CPU's is at http://support.intel.com/support/processors/pentiumiii/.
Intel Pentium III microprocessors may be identified by their S-specification (S-spec), which is the five-character code beginning with ?S? or ?SL? printed on the processor itself, on the top of the SECC2 cartridge and on the outside of the retail box. To determine the specifications for a CPU, simply check its S-spec against those in the chart.
SPEED TYPE...... FSB.... FORM.. STEPPING RETAIL OEM
450.. KATMAI---- 100 MHz SECC2. kB0 SL3CC SL364
450.. KATMAI---- 100 MHz SECC2. kC0 SL37C SL35D
500.. KATMAI---- 100 MHz SECC2. kB0 SL3CD SL365
500.. KATMAI---- 100 MHz SECC2. kB0 SL365 SL365
500.. KATMAI---- 100 MHz SECC2. kC0 SL37D SL35E
500E. COPPERMINE 100 MHz FC-PGA cA2 SL3R2 SL3Q9
500E. COPPERMINE 100 MHz FC-PGA cB0 SL45R SL444
533B. KATMAI---- 133 MHz SECC2. kC0 SL3E9 SL3BN
533EB COPPERMINE 133 MHz SECC2. cA2 SL3SX SL3N6
533EB COPPERMINE 133 MHz FC-PGA cA2 SL3VA SL3VF
533EB COPPERMINE 133 MHz SECC2. cB0 SL44W SL3XG
533EB COPPERMINE 133 MHz FC-PGA cB0 SL45S SL3XS
550.. KATMAI---- 100 MHz SECC2. kC0 SL3FJ SL3F7
550E. COPPERMINE 100 MHz FC-PGA cA2 SL3R3 SL3QA
550E. COPPERMINE 100 MHz SECC2. cA2 SL3V5 SL3N7
550E. COPPERMINE 100 MHz SECC2. cB0 SL44X SL3XH
550E. COPPERMINE 100 MHz FC-PGA cB0 SL45T N/A
600.. KATMAI---- 100 MHz SECC2. kC0 SL3JT SL3JM
600E. COPPERMINE 100 MHz SECC2. cA2 SL3NA SL3H6
600E. COPPERMINE 100 MHz FC-PGA cA2 SL3NL SL3VH
600E. COPPERMINE 100 MHz SECC2. cB0 SL44Y SL43E
600E. COPPERMINE 100 MHz FC-PGA cB0 SL45U SL3XU
600B. KATMAI---- 133 MHz SECC2. kC0 SL3JU SL3JP
600EB COPPERMINE 133 MHz SECC2. cA2 SL3NB SL3H7
600EB COPPERMINE 133 MHz FC-PGA cA2 SL3VB SL3VG
600EB COPPERMINE 133 MHz SECC2. cB0 SL44Z SL3XJ
600EB COPPERMINE 133 MHz FC-PGA cB0 SL45V SL3XT
650.. COPPERMINE 100 MHz SECC2. cA2 SL3NR SL3KV
650.. COPPERMINE 100 MHz FC-PGA cA2 SL3NM SL3VJ
650.. COPPERMINE 100 MHz SECC2. cB0 SL452 SL3XK
650.. COPPERMINE 100 MHz FC-PGA cB0 SL45W SL3XV
667.. COPPERMINE 133 MHz SECC2. cA2 SL3ND SL3KW
667.. COPPERMINE 133 MHz FC-PGA cA2 SL3T2 SL3VK
667.. COPPERMINE 133 MHz SECC2. cB0 SL453 SL3XL
667.. COPPERMINE 133 MHz FC-PGA cB0 SL45X SL3XW
700.. COPPERMINE 100 MHz SECC2. cA2 SL3SY SL3S9
700.. COPPERMINE 100 MHz FC-PGA cA2 SL3T3 SL3VL
700.. COPPERMINE 100 MHz SECC2. cB0 SL454 SL453
700.. COPPERMINE 100 MHz FC-PGA cB0 SL45Y SL3XX
733.. COPPERMINE 133 MHz SECC2. cA2 SL3SZ SL3SB
733.. COPPERMINE 133 MHz FC-PGA cA2 SL3T4 SL3VM
733.. COPPERMINE 133 MHz SECC2. cB0 SL455 SL3XN
733.. COPPERMINE 133 MHz FC-PGA cB0 SL45Z SL3XY
750.. COPPERMINE 100 MHz SECC2. cA2 SL3V6 SL3WC
750.. COPPERMINE 100 MHz FC-PGA cA2 SL3VC SL3VN
750.. COPPERMINE 100 MHz SECC2. cB0 SL456 SL3XP
750.. COPPERMINE 100 MHz FC-PGA cB0 SL462 SL3XZ
800.. COPPERMINE 100 MHz SECC2. cB0 SL457 SL3XR
800.. COPPERMINE 100 MHz FC-PGA cB0 SL463 SL3Y3
800EB COPPERMINE 133 MHz SECC2. cB0 SL458 SL3XQ
800EB COPPERMINE 133 MHz FC-PGA cB0 SL464 SL3Y2
850.. COPPERMINE 100 MHz SECC2. cB0 SL47M SL43F
850.. COPPERMINE 100 MHz FC-PGA cB0 SL49G SL43H
866.. COPPERMINE 133 MHz SECC2. cB0 SL47N SL43G
866.. COPPERMINE 133 MHz FC-PGA cB0 SL49H SL43J
933.. COPPERMINE 133 MHz SECC2. cB0 SL47Q SL448
933.. COPPERMINE 133 MHz FC-PGA cB0 SL49J SL44J
1000. COPPERMINE 133 MHz SECC2. cB0 N. A. SL48S
1133. COPPERMINE 133 MHz SECC2. cC0 N. A. SL4HH
Key to ?chart?:
A. Intel?s Pentium III identification and basic specification chart, which is kept up to date by Intel, may be found at: http://support.intel.com/support/processors/sspec/p3p.htm. Intel's web page for more detailed references to information on the P3 line of CPU's is at http://support.intel.com/support/processors/pentiumiii/.
B. Intel Pentium III microprocessors may be identified by their S-specification (S-spec), which is the five-character code beginning with ?S? or ?SL? printed on the processor itself, on the top of the SECC2 cartridge and on the outside of the retail box. To determine the specifications for a CPU, simply check its S-spec against those in the chart.
C. P3?s come in two different varieties, from a performance point of view: the earlier Katmai design, which is less desirable; and the later preferred Coppermine design. The Katmais were built using a .25-micron manufacturing process and their L2 cache is not physically integrated with the chip core. The Coppermines are built using an improved .18-micron manufacturing process, and have an improved memory cache architecture. The cache is physically integrated with the chip core also. The Coppermine?s performance is significantly improved by the .18-micron process and the improved memory cache design and its on-die location.
D. The identification of P3?s is made easier, according to the manufacurer, by the addition of letters to their speed designations:
1. E means the CPU is a Coppermine, which is much preferred over the older Katmai designs (which are still available but only @ 450, 500,550 or 600 MHz). All P3?s over 600 MHz are Coppermines. Not all Coppermines have an E ? usually it is used when the CPU could be confused with a Katmai of the same speed.
2. B means the CPU is designed for a 133 MHz system bus (front side bus or FSB).
3. EB means the CPU is a Coppermine designed for a 133 MHz system bus (front side bus or FSB).
4. Neither E, B or EB means that, only if the speed is 600 MHz or less, the CPU is the older Katmai design, not the newer preferred Coppermine design. All P3?s over 600 MHz are Coppermines.
E. P3?s come in two physical formats: the FC-PGA (Flip Chip Pin Grid Array) and SECC2 (Single Edge Contact Connector 2):
1. The FC-PGA form of the P3 consists of a bare microprocessor with pins on the bottom that fits into a Socket 370 type connecter on the motherboard. It also can be used in motherboards having Slot 1 type connectors when used with a ?slocket? adapter designed for FC-PGA type chips (not for PPGA type chip). Only P3 Coppermine chips come in this format, although they also come in the SECC2 form. No Katmais come in the FC-PGA form.
2. The SECC2 form of the P3 contains the microprocessor in a large black plastic cartridge that fits into a Slot 1 connecter on the motherboard. Both P3 Coppermines and Katmais come in this format. Coppermines also come in the FC-PGA form. Katmai?s come only in this format. It is expected that the SECC2 form will eventually phased out.
3. The FC-PGA form is the more versatile format because it can be used in Socket 370 motherboards directly or can be used in motherboards having Slot 1 type connectors when used with a ?slocket? adapter designed for FC-PGA type chips (not for PPGA type chip).
4. With regard to 'slocket' adapters for FC-PGA CPU's please note Intel's cautions at: http://support.intel.com/support/processors/pentiumiii/ssalist.htm
F. The P3?s come in several different steppings. The stepping identifies a particular manufacturing run, batch or version. The stepping of a CPU is only significant if one is overclocking or using multiple processors. At the time of preparing this material the Coppermine CPU?s with the cB0 or the cC0 stepping are preferred for overclocking. All P3?s @ 800 MHz or greater are of the cB0 or cC0 stepping. In multiple processor systems the CPU?s normally should be of the same stepping and S-specification.
G. P3?s are available for sale in two versions: retail or OEM:
1. Retail versions of the P3 come in Intel packaging, have an attached fan and heat sink meeting Intel?s specs, and have a full Intel warranty.
2. OEM versions when sold at retail usually are packaged by the vendor or supplier, may not include a fan (or include one supplied by the vendor), may have a shorter warranty (from the vendor only) and may or may not be as over-clockable as a retail version.
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